finding announced by nasa researchers today. >> ancient environment. with the right elements opinion rals indicating a near neutral environment and slightly salty liquid water. all the pre-requisite to support life. >> curiosity drilled in the rock to get a powder sample then blasted it with the laser and x-rays to determine its composition. researchers from nasa aims part of the team that investigating that sample. amazing work. talk about what is going on on this planet. gorgeous weather. spencer back with the forecast. >> yes but was there weather? that's the question. we had weather her today. high pressure soared to well not summer like levels but certainly mid sprinkling levels upper 70's, 78 at clover dale ukiah 77 at clear lake 75 at santa rosa mid 70's in many location around the bay area today exploratorium had high of 65 so it was quite mild. mild again tomorrow. right now live doppler 7hd clear skies coastal fog beginning to push beyond the coast now. locally inland. that will be the pattern overnight. then tomorrow state wide mainly sunny